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Given a list of non negative integers, arrange them such that they form the largest number. For example, given [3, 30, 34, 5, 9], the largest formed number is 9534330. Note: The result may be very ...

Valid operators are +, -, *, /. Each operand may be an integer or another expression. public class Solution { public int evalRPN(String[] tokens) { int result=0; List<Integer> ...

Reverse a linked list from position m to n. Do it in-place and in one-pass. For example: Given 1->2->3->4->5->NULL, m = 2 and n = 4, return 1->4->3->2->5->NULL. ...